chore: add deployment configuration

- docker-compose.yml for VPS deployment
- deploy.sh for auto-updates
- Fixed package.json name

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "nextjs-temp",
+  "name": "leopost",
   "version": "0.1.0",
   "private": true,
   "scripts": {